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diff --git a/bdb/docs/ref/am/open.html b/bdb/docs/ref/am/open.html new file mode 100644 index 00000000000..01c45339ed8 --- /dev/null +++ b/bdb/docs/ref/am/open.html @@ -0,0 +1,47 @@ +<!--$Id: open.so,v 10.15 2000/12/18 21:05:14 bostic Exp $--> +<!--Copyright 1997, 1998, 1999, 2000 by Sleepycat Software, Inc.--> +<!--All rights reserved.--> +<html> +<head> +<title>Berkeley DB Reference Guide: Opening a database</title> +<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> +<meta name="keywords" content="embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,java,C,C++"> +</head> +<body bgcolor=white> + <a name="2"><!--meow--></a> +<table><tr valign=top> +<td><h3><dl><dt>Berkeley DB Reference Guide:<dd>Access Methods</dl></h3></td> +<td width="1%"><a href="../../ref/am/ops.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../../ref/toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../../ref/am/opensub.html"><img src="../../images/next.gif" alt="Next"></a> +</td></tr></table> +<p> +<h1 align=center>Opening a database</h1> +<p>The <a href="../../api_c/db_open.html">DB->open</a> function is the standard interface for opening a database, +and takes five arguments: +<p><dl compact> +<p><dt>file<dd>The name of the file to be opened. +<p><dt>database<dd>An optional database name. +<p><dt>type<dd>The type of database to open. This value will be one of the four access +methods Berkeley DB supports: DB_BTREE, DB_HASH, DB_QUEUE or DB_RECNO, or the +special value DB_UNKNOWN, which allows you to open an existing file +without knowing its type. +<p><dt>mode<dd>The permissions to give to any created file. +</dl> +<p>There are a few flags that you can set to customize open: +<p><dl compact> +<p><dt><a href="../../api_c/env_open.html#DB_CREATE">DB_CREATE</a><dd>Create the underlying database and any necessary physical files. +<p><dt><a href="../../api_c/env_open.html#DB_NOMMAP">DB_NOMMAP</a><dd>Do not map this database into process memory. +<p><dt><a href="../../api_c/db_open.html#DB_RDONLY">DB_RDONLY</a><dd>Treat the data base as readonly. +<p><dt><a href="../../api_c/env_open.html#DB_THREAD">DB_THREAD</a><dd>The returned handle is free-threaded, that is, it can be used +simultaneously by multiple threads within the process. +<p><dt><a href="../../api_c/db_open.html#DB_TRUNCATE">DB_TRUNCATE</a><dd>Physically truncate the underlying database file, discarding all +databases it contained. Underlying filesystem primitives are used to +implement this flag. For this reason it is only applicable to the +physical file and cannot be used to discard individual databases from +within physical files. +<p><dt><a href="../../api_c/db_set_feedback.html#DB_UPGRADE">DB_UPGRADE</a><dd>Upgrade the database format as necessary. +</dl> +<table><tr><td><br></td><td width="1%"><a href="../../ref/am/ops.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../../ref/toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../../ref/am/opensub.html"><img src="../../images/next.gif" alt="Next"></a> +</td></tr></table> +<p><font size=1><a href="http://www.sleepycat.com">Copyright Sleepycat Software</a></font> +</body> +</html> |